This is something I've been wondering about as well especially as I (new to cat ownership) consider bumping a modular NRS foot bar up front of my (secondhand) frame. It seems to me that with a relatively short frame (just under 9') on my 18' x 22" tubes the end-on yokes are probably near-requisite.
I want to provide web floor anchorage point and better footrest option for elderly passengers on an upcoming mellow trip (I have, and very much dislike, a ghetto style welded + 2x4' construction footrest doodad that hoseclamps to front yoke...I feel that it has too many sharp edges and presents foot entrapment/trip hazard for my folks).
An alternative that I've been considering is seen here in RaftPron post 1366 (https://www.mountainbuzz.com/forums/f44/raft-porn-needed-lets-see-them-rigs-40045-137.html
) via use of something like the NRS solid solid rod inserts (https://www.nrs.com/product/1200%20r...own-side-rails) to connect custom bent spreader for floor? Or...? Sorry to add other tangents, OP.